Atomera Inc (ATOM) Institutional Ownership

Institutions by Trading Activity

31,128,000Shares Outstanding

10,624,579Shares held by institutions

$102,102,204Value of institutional holdings

34.13%Institutional ownership %

1.74%Shares Changed QoQ

94No. of institutional investors

Atomera Inc (NASDAQ:ATOM) has 94 institutional investors that have filed 13F reports for the period ending December 2025.

They owned 33.7% of outstanding stock in December 2025, down from 34.1% the prior quarter.
Their total shares held in ATOM increased 0.82% quarter over quarter, and separately, investors owning Atomera increased 27.03% from a year ago.
During the quarter, 49 of these 94 funds increased positions in ATOM, 28 reduced exposure, and 17 held steady.
Institutional investors collectively held 10.49Mn shares in Atomera as of December 2025, up by 85.12K shares quarter on quarter, and up 1.61Mn shares year over year.
SLT Holdings LLC is the top holder of Atomera as of December 31, 2025, with 12.5K shares representing 0.04% of outstanding stock.
The largest buyers of Atomera for the quarter ending December 2025 were Fortitude Family Office, LLC (390), Root Financial Partners, LLC (82), True Wealth Design, LLC (32), IFP Advisors, Inc (10), Farther Finance Advisors, LLC (2).
The largest sales of ATOM for the quarter ending December 2025 came from GAMMA Investing LLC (40).
According to Business Quant data, leading holders of ATOM for December 2025 are SLT Holdings LLC (12.5K), ACT WEALTH MANAGEMENT, LLC (10.0K), GHP Investment Advisors, Inc. (4.43K), ARMSTRONG ADVISORY GROUP, INC (665), Fortitude Family Office, LLC (620), GAMMA Investing LLC (618), Sterling Capital Management LLC (190), Root Financial Partners, LLC (82), True Wealth Design, LLC (32), IFP Advisors, Inc (10).

10,624,579 Total Shares Held

Rows:

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	1,973,176	76,330	4.02%	$4,360,720.00
VANGUARD GROUP INC	31 Dec, 2025	1,645,828	9,890	0.60%	$3,637,279.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	740,985	17,658	2.44%	$1,637,871.00
AVENIR CORP	31 Dec, 2025	614,385	10,000	1.65%	$1,357,791.00
HOLLENCREST CAPITAL MANAGEMENT	31 Dec, 2025	606,546	7,479	1.25%	$1,340,467.00
Quantum Private Wealth, LLC	31 Dec, 2025	598,847	71,739	13.61%	$1,323,453.00
State Street Corp	31 Dec, 2025	489,147	42,569	9.53%	$1,081,015.00
Baird Financial Group, Inc.	31 Dec, 2025	312,120	-663,541	-68.01%	$689,785.00
Goldman Sachs Group Inc	31 Dec, 2025	277,522	172,893	165.24%	$613,324.00
Northern Trust Corp	31 Dec, 2025	276,128	-17,406	-5.93%	$610,243.00
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	31 Dec, 2025	185,054	168,163	995.58%	$6,905,101.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	181,328	90,386	99.39%	$400,735.00
MARSHALL WACE, LLP	31 Dec, 2025	179,276	179,276	0.00%	$396,199.00
JANE STREET GROUP, LLC	31 Dec, 2025	171,424	121,457	243.07%	$378,847.00
Morgan Stanley	31 Dec, 2025	171,001	89,429	109.63%	$377,913.00
Pathstone Holdings, LLC	31 Dec, 2025	167,905	167,905	0.00%	$371,071.00
Sargent Investment Group, LLC	31 Dec, 2025	166,050	2,500	1.53%	$366,971.00
UBS Group AG	31 Dec, 2025	152,915	-17,248	-10.14%	$337,942.00
Westside Investment Management, Inc.	31 Dec, 2025	149,447	-38,505	-20.49%	$330,285.00
BROWN ADVISORY INC	31 Dec, 2025	100,243	-52,200	-34.24%	$221,537.00

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